[apps/shared] Add toggle buttons in Graph view

Change-Id: I7548d11fb114b2605ce34d3bda0776277b79ff9d

apps/regression/graph_view.cpp

@@ -34,7 +34,7 @@ void GraphView::drawRect(KDContext * ctx, KDRect rect) const {
       for (int index = 0; index < m_store->numberOfPairsOfSeries(series); index++) {
         drawDot(ctx, rect, m_store->get(series, 0, index), m_store->get(series, 1, index), color);
       }
-      drawDot(ctx, rect, m_store->meanOfColumn(series, 0), m_store->meanOfColumn(series, 1), color, Size::Medium);
+      drawDot(ctx, rect, m_store->meanOfColumn(series, 0), m_store->meanOfColumn(series, 1), color, Size::Small);
       drawDot(ctx, rect, m_store->meanOfColumn(series, 0), m_store->meanOfColumn(series, 1), KDColorWhite);
     }
   }

apps/shared/curve_view.cpp

@@ -458,14 +458,14 @@ void CurveView::drawDot(KDContext * ctx, KDRect rect, float x, float y, KDColor
   KDCoordinate diameter = 0;
   const uint8_t * mask = nullptr;
   switch (size) {
+    case Size::Tiny:
+      diameter = Dots::TinyDotDiameter;
+      mask = (const uint8_t *)Dots::TinyDotMask;
+      break;
     case Size::Small:
       diameter = Dots::SmallDotDiameter;
       mask = (const uint8_t *)Dots::SmallDotMask;
       break;
-    case Size::Medium:
-      diameter = Dots::MediumDotDiameter;
-      mask = (const uint8_t *)Dots::MediumDotMask;
-      break;
     default:
       assert(size == Size::Large);
       diameter = Dots::LargeDotDiameter;

apps/shared/curve_view.h

@@ -75,11 +75,11 @@ protected:
     KDColor color, bool thick = true
   ) const;
   enum class Size : uint8_t {
+    Tiny,
     Small,
-    Medium,
     Large
   };
-  void drawDot(KDContext * ctx, KDRect rect, float x, float y, KDColor color, Size size = Size::Small) const;
+  void drawDot(KDContext * ctx, KDRect rect, float x, float y, KDColor color, Size size = Size::Tiny) const;
   /* 'drawArrow' draws the edge of an arrow pointing to (x,y) with the
    * orientation (dx,dy).
    * The parameters defining the shape of the arrow are the length of

apps/shared/dots.cpp

@@ -2,7 +2,7 @@
 
 namespace Shared {
 
-const uint8_t Dots::SmallDotMask[Dots::SmallDotDiameter][Dots::SmallDotDiameter] = {
+const uint8_t Dots::TinyDotMask[Dots::TinyDotDiameter][Dots::TinyDotDiameter] = {
   {0xE1, 0x45, 0x0C, 0x45, 0xE1},
   {0x45, 0x00, 0x00, 0x00, 0x45},
   {0x00, 0x00, 0x00, 0x00, 0x00},
@@ -10,7 +10,7 @@ const uint8_t Dots::SmallDotMask[Dots::SmallDotDiameter][Dots::SmallDotDiameter]
   {0xE1, 0x45, 0x0C, 0x45, 0xE1},
 };
 
-const uint8_t Dots::MediumDotMask[Dots::MediumDotDiameter][Dots::MediumDotDiameter] = {
+const uint8_t Dots::SmallDotMask[Dots::SmallDotDiameter][Dots::SmallDotDiameter] = {
   {0xE1, 0x45, 0x0C, 0x00, 0x0C, 0x45, 0xE1},
   {0x45, 0x0C, 0x00, 0x00, 0x00, 0x0C, 0x45},
   {0x0C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0C},

apps/shared/dots.h

@@ -7,10 +7,10 @@ namespace Shared {
 
 class Dots {
 public:
-  static constexpr KDCoordinate SmallDotDiameter = 5;
+  static constexpr KDCoordinate TinyDotDiameter = 5;
+  static const uint8_t TinyDotMask[TinyDotDiameter][TinyDotDiameter];
+  static constexpr KDCoordinate SmallDotDiameter = 7;
   static const uint8_t SmallDotMask[SmallDotDiameter][SmallDotDiameter];
-  static constexpr KDCoordinate MediumDotDiameter = 7;
-  static const uint8_t MediumDotMask[MediumDotDiameter][MediumDotDiameter];
   static constexpr KDCoordinate LargeDotDiameter = 10;
   static const uint8_t LargeDotMask[LargeDotDiameter][LargeDotDiameter];
 };

apps/shared/interactive_curve_view_controller.cpp

@@ -69,6 +69,11 @@ float InteractiveCurveViewController::addMargin(float y, float range, bool isVer
   return y + ratio * range;
 }
 
+void InteractiveCurveViewController::updateZoomButtons() {
+  m_autoButton.setState(m_interactiveRange->zoomAuto());
+  m_normalizeButton.setState(m_interactiveRange->zoomNormalize());
+}
+
 const char * InteractiveCurveViewController::title() {
   return I18n::translate(I18n::Message::GraphTab);
 }
@@ -304,9 +309,7 @@ bool InteractiveCurveViewController::autoButtonAction() {
 }
 
 bool InteractiveCurveViewController::normalizeButtonAction() {
-  if (m_interactiveRange->zoomNormalize()) {
-    m_interactiveRange->setZoomNormalize(false);
-  } else {
+  if (!m_interactiveRange->zoomNormalize()) {
     m_interactiveRange->setZoomAuto(false);
     m_interactiveRange->normalize();
     setCurveViewAsMainView();

apps/shared/interactive_curve_view_controller.h

@@ -7,6 +7,7 @@
 #include "range_parameter_controller.h"
 #include "function_zoom_and_pan_curve_view_controller.h"
 #include <poincare/coordinate_2D.h>
+#include <escher/button_state.h>
 
 namespace Shared {
 
@@ -66,6 +67,7 @@ private:
 
   // InteractiveCurveViewRangeDelegate
   float addMargin(float x, float range, bool isVertical, bool isMin) override;
+  void updateZoomButtons() override;
 
   void setCurveViewAsMainView();
 
@@ -79,8 +81,8 @@ private:
   RangeParameterController m_rangeParameterController;
   FunctionZoomAndPanCurveViewController m_zoomParameterController;
   InteractiveCurveViewRange * m_interactiveRange;
-  Button m_autoButton;
-  Button m_normalizeButton;
+  ButtonState m_autoButton;
+  ButtonState m_normalizeButton;
   Button m_navigationButton;
   Button m_rangeButton;
 };

apps/shared/interactive_curve_view_range.cpp

@@ -11,6 +11,13 @@ using namespace Poincare;
 
 namespace Shared {
 
+void InteractiveCurveViewRange::setDelegate(InteractiveCurveViewRangeDelegate * delegate) {
+  m_delegate = delegate;
+  if (delegate) {
+    m_delegate->updateZoomButtons();
+  }
+}
+
 uint32_t InteractiveCurveViewRange::rangeChecksum() {
   float data[] = {xMin(), xMax(), yMin(), yMax()};
   size_t dataLengthInBytes = sizeof(data);
@@ -18,6 +25,20 @@ uint32_t InteractiveCurveViewRange::rangeChecksum() {
   return Ion::crc32Word((uint32_t *)data, dataLengthInBytes/sizeof(uint32_t));
 }
 
+void InteractiveCurveViewRange::setZoomAuto(bool v) {
+  m_zoomAuto = v;
+  if (m_delegate) {
+    m_delegate->updateZoomButtons();
+  }
+}
+
+void InteractiveCurveViewRange::setZoomNormalize(bool v) {
+  m_zoomNormalize = v;
+  if (m_delegate) {
+    m_delegate->updateZoomButtons();
+  }
+}
+
 void InteractiveCurveViewRange::setXMin(float xMin) {
   MemoizedCurveViewRange::protectedSetXMin(xMin, k_lowerMaxFloat, k_upperMaxFloat);
 }
@@ -55,7 +76,7 @@ void InteractiveCurveViewRange::zoom(float ratio, float x, float y) {
   float xMa = xMax();
   float yMi = yMin();
   float yMa = yMax();
-  m_zoomAuto = false;
+  setZoomAuto(false);
   if (ratio*std::fabs(xMa-xMi) < Range1D::k_minFloat || ratio*std::fabs(yMa-yMi) < Range1D::k_minFloat) {
     return;
   }
@@ -163,7 +184,7 @@ void InteractiveCurveViewRange::panToMakePointVisible(float x, float y, float to
     const float xRange = xMax() - xMin();
     const float leftMargin = leftMarginRatio * xRange;
     if (x < xMin() + leftMargin) {
-      m_zoomAuto = false;
+      setZoomAuto(false);
       /* The panning increment is a whole number of pixels so that the caching
        * for cartesian functions is not invalidated. */
       const float newXMin = std::floor((x - leftMargin - xMin()) / pixelWidth) * pixelWidth + xMin();
@@ -172,7 +193,7 @@ void InteractiveCurveViewRange::panToMakePointVisible(float x, float y, float to
     }
     const float rightMargin = rightMarginRatio * xRange;
     if (x > xMax() - rightMargin) {
-      m_zoomAuto = false;
+      setZoomAuto(false);
       const float newXMax = std::ceil((x + rightMargin - xMax()) / pixelWidth) * pixelWidth + xMax();
       m_xRange.setMax(newXMax, k_lowerMaxFloat, k_upperMaxFloat);
       MemoizedCurveViewRange::protectedSetXMin(xMax() - xRange, k_lowerMaxFloat, k_upperMaxFloat);
@@ -182,14 +203,14 @@ void InteractiveCurveViewRange::panToMakePointVisible(float x, float y, float to
     const float yRange = yMax() - yMin();
     const float bottomMargin = bottomMarginRatio * yRange;
     if (y < yMin() + bottomMargin) {
-      m_zoomAuto = false;
+      setZoomAuto(false);
       const float newYMin = y - bottomMargin;
       m_yRange.setMax(newYMin + yRange, k_lowerMaxFloat, k_upperMaxFloat);
       MemoizedCurveViewRange::protectedSetYMin(newYMin, k_lowerMaxFloat, k_upperMaxFloat);
     }
     const float topMargin = topMarginRatio * yRange;
     if (y > yMax() - topMargin) {
-      m_zoomAuto = false;
+      setZoomAuto(false);
       m_yRange.setMax(y + topMargin, k_lowerMaxFloat, k_upperMaxFloat);
       MemoizedCurveViewRange::protectedSetYMin(yMax() - yRange, k_lowerMaxFloat, k_upperMaxFloat);
     }

apps/shared/interactive_curve_view_range.h

@@ -13,21 +13,25 @@ class InteractiveCurveViewRange : public MemoizedCurveViewRange {
 public:
   InteractiveCurveViewRange(InteractiveCurveViewRangeDelegate * delegate = nullptr) :
     MemoizedCurveViewRange(),
-    m_delegate(delegate),
+    m_delegate(nullptr),
     m_zoomAuto(true),
     m_zoomNormalize(false)
-  {}
+  {
+    if (delegate) {
+      setDelegate(delegate);
+    }
+  }
 
   static constexpr float NormalYXRatio() { return NormalizedYHalfRange(1.f) / NormalizedXHalfRange(1.f); }
   bool isOrthonormal(float tolerance = 2 * FLT_EPSILON) const;
 
-  void setDelegate(InteractiveCurveViewRangeDelegate * delegate) { m_delegate = delegate; }
+  void setDelegate(InteractiveCurveViewRangeDelegate * delegate);
   uint32_t rangeChecksum() override;
 
   bool zoomAuto() const { return m_zoomAuto; }
-  void setZoomAuto(bool v) { m_zoomAuto = v; }
+  void setZoomAuto(bool v);
   bool zoomNormalize() const { return m_zoomNormalize; }
-  void setZoomNormalize(bool v) { m_zoomNormalize = v; }
+  void setZoomNormalize(bool v);
 
   // MemoizedCurveViewRange
   float xGridUnit() const override { return m_zoomNormalize ? yGridUnit() : MemoizedCurveViewRange::xGridUnit(); }

apps/shared/interactive_curve_view_range_delegate.h

@@ -14,6 +14,7 @@ public:
   virtual bool defaultRangeIsNormalized() const { return false; }
   virtual void interestingRanges(InteractiveCurveViewRange * range) const { assert(false); }
   virtual float addMargin(float x, float range, bool isVertical, bool isMin) = 0;
+  virtual void updateZoomButtons() = 0;
 };
 
 }

escher/Makefile

@@ -7,6 +7,7 @@ escher_src += $(addprefix escher/src/,\
   bordered.cpp \
   buffer_text_view.cpp \
   button.cpp \
+  button_state.cpp \
   button_row_controller.cpp \
   chevron_view.cpp \
   clipboard.cpp \
@@ -81,6 +82,8 @@ escher_src += $(addprefix escher/src/,\
   text_view.cpp \
   tiled_view.cpp \
   timer.cpp \
+  toggleable_dot_view.cpp \
+  toggleable_view.cpp \
   toolbox.cpp \
   transparent_view.cpp \
   view.cpp \

escher/include/escher/button.h

@@ -21,13 +21,13 @@ public:
   KDSize minimalSizeForOptimalDisplay() const override;
 protected:
   MessageTextView m_messageTextView;
+  void layoutSubviews(bool force = false) override;
 private:
   constexpr static KDCoordinate k_verticalMargin = 5;
   constexpr static KDCoordinate k_horizontalMarginSmall = 10;
   constexpr static KDCoordinate k_horizontalMarginLarge = 20;
   int numberOfSubviews() const override;
   View * subviewAtIndex(int index) override;
-  void layoutSubviews(bool force = false) override;
   Invocation m_invocation;
   const KDFont * m_font;
 };

escher/include/escher/button_state.h

@@ -0,0 +1,24 @@
+#ifndef ESCHER_BUTTON_STATE_H
+#define ESCHER_BUTTON_STATE_H
+
+#include <escher/button.h>
+#include <escher/toggleable_dot_view.h>
+
+class ButtonState : public Button {
+public:
+  using Button::Button;
+  void setState(bool state) { m_stateView.setState(state); }
+  KDSize minimalSizeForOptimalDisplay() const override;
+  void drawRect(KDContext * ctx, KDRect rect) const override;
+private:
+  // Dot right margin.
+  constexpr static KDCoordinate k_stateMargin = 9;
+  // Dot vertical position offset.
+  constexpr static KDCoordinate k_verticalOffset = 5;
+  int numberOfSubviews() const override { return 2; }
+  View * subviewAtIndex(int index) override;
+  void layoutSubviews(bool force = false) override;
+  ToggleableDotView m_stateView;
+};
+
+#endif

escher/include/escher/switch_view.h

@@ -1,22 +1,21 @@
 #ifndef ESCHER_SWITCH_VIEW_H
 #define ESCHER_SWITCH_VIEW_H
 
-#include <escher/transparent_view.h>
+#include <escher/toggleable_view.h>
+#include <escher/palette.h>
 
-class SwitchView : public TransparentView {
+
+class SwitchView final : public ToggleableView {
 public:
-  SwitchView();
-  bool state();
-  void setState(bool state);
-  void drawRect(KDContext * ctx, KDRect rect) const override;
-  KDSize minimalSizeForOptimalDisplay() const override;
+  using ToggleableView::ToggleableView;
   /* k_switchHeight and k_switchWidth are the dimensions of the switch
    * (including the outline of the switch). */
   constexpr static KDCoordinate k_onOffSize = 12;
   constexpr static KDCoordinate k_switchHeight = 12;
   constexpr static KDCoordinate k_switchWidth = 22;
+  KDSize minimalSizeForOptimalDisplay() const override { return KDSize(k_switchWidth, k_switchHeight); }
 private:
-  bool m_state;
+  void drawRect(KDContext * ctx, KDRect rect) const override;
 };
 
 #endif

escher/include/escher/toggleable_dot_view.h

@@ -0,0 +1,16 @@
+#ifndef ESCHER_TOGGLEABLE_DOT_VIEW_H
+#define ESCHER_TOGGLEABLE_DOT_VIEW_H
+
+#include <escher/toggleable_view.h>
+
+class ToggleableDotView final : public ToggleableView {
+public:
+  using ToggleableView::ToggleableView;
+  /* k_dotSize is the dimensions of the toggle dot */
+  constexpr static KDCoordinate k_dotSize = 8;
+  KDSize minimalSizeForOptimalDisplay() const override { return KDSize(k_dotSize, k_dotSize); }
+private:
+  void drawRect(KDContext * ctx, KDRect rect) const override;
+};
+
+#endif

escher/include/escher/toggleable_view.h

@@ -0,0 +1,15 @@
+#ifndef ESCHER_TOGGLEABLE_VIEW_H
+#define ESCHER_TOGGLEABLE_VIEW_H
+
+#include <escher/transparent_view.h>
+
+class ToggleableView : public TransparentView {
+public:
+  ToggleableView() : m_state(true) {}
+  bool state() { return m_state; }
+  void setState(bool state);
+protected:
+  bool m_state;
+};
+
+#endif

escher/src/button_state.cpp

@@ -0,0 +1,35 @@
+#include <escher/button_state.h>
+#include <assert.h>
+#include <algorithm>
+
+View * ButtonState::subviewAtIndex(int index) {
+  assert(index >= 0 && index < 2);
+  if (index == 0) {
+    return &m_messageTextView;
+  }
+  return &m_stateView;
+}
+
+void ButtonState::layoutSubviews(bool force) {
+  KDSize textSize = Button::minimalSizeForOptimalDisplay();
+  KDRect textRect = KDRect(0, 0, textSize.width(), bounds().height());
+  // State view will be vertically centered and aligned on the left
+  KDSize stateSize = m_stateView.minimalSizeForOptimalDisplay();
+  KDRect stateRect = KDRect(textSize.width(), k_verticalOffset, stateSize.width(), stateSize.height());
+
+  m_messageTextView.setFrame(textRect, force);
+  m_stateView.setFrame(stateRect, force);
+}
+
+void ButtonState::drawRect(KDContext * ctx, KDRect rect) const {
+  KDColor backColor = isHighlighted() ? highlightedBackgroundColor() : KDColorWhite;
+  ctx->fillRect(bounds(), backColor);
+}
+
+KDSize ButtonState::minimalSizeForOptimalDisplay() const {
+  KDSize textSize = Button::minimalSizeForOptimalDisplay();
+  KDSize stateSize = m_stateView.minimalSizeForOptimalDisplay();
+  return KDSize(
+    textSize.width() + stateSize.width() + k_stateMargin,
+    std::max(textSize.height(), stateSize.height()));
+}

escher/src/switch_view.cpp

@@ -1,5 +1,4 @@
 #include <escher/switch_view.h>
-#include <escher/palette.h>
 
 const uint8_t switchMask[SwitchView::k_switchHeight][SwitchView::k_switchWidth] = {
   {0xFF, 0xFF, 0xE1, 0x0C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0C, 0xE1, 0xFF, 0xFF},
@@ -32,37 +31,28 @@ const uint8_t onOffMask[SwitchView::k_onOffSize][SwitchView::k_onOffSize] = {
   {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF},
 };
 
-SwitchView::SwitchView() :
-m_state(true)
-{
-}
-
-bool SwitchView::state() {
-  return m_state;
-}
-
-void SwitchView::setState(bool state) {
-  m_state = state;
-  markRectAsDirty(bounds());
-}
-
 void SwitchView::drawRect(KDContext * ctx, KDRect rect) const {
-  /* Draw the switch aligned on the right of the view and vertically centered.
+  /* Draw the view aligned on the right of the view and vertically centered
    * The heightCenter is the coordinate of the vertical middle of the view. That
-   * way, (heightCenter-switchHalfHeight) indicates the top the switch. */
+   * way, (heightCenter-halfHeight) indicates the top of the StateView. */
   KDCoordinate width = bounds().width();
-  KDCoordinate heightCenter =  bounds().height()/2;
-  KDCoordinate switchHalfHeight = k_switchHeight/2;
-  KDColor switchWorkingBuffer[SwitchView::k_switchWidth*SwitchView::k_switchHeight];
+  KDCoordinate heightCenter =  bounds().height() / 2;
+  KDCoordinate halfHeight = k_switchHeight / 2;
+  KDColor workingBuffer[k_switchWidth * k_switchHeight];
+
+  KDRect frame(width - k_switchWidth, heightCenter - halfHeight, k_switchWidth, k_switchHeight);
+  ctx->blendRectWithMask(
+    frame,
+    m_state ? Palette::YellowDark : Palette::GrayDark,
+    reinterpret_cast<const uint8_t *>(switchMask),
+    workingBuffer);
+
 
-  KDColor mainColor = m_state ? Palette::YellowDark : Palette::GrayDark;
-  KDRect frame(width - k_switchWidth, heightCenter -switchHalfHeight, k_switchWidth, k_switchHeight);
-  ctx->blendRectWithMask(frame, mainColor, (const uint8_t *)switchMask, switchWorkingBuffer);
   KDCoordinate onOffX = width - (m_state ? k_onOffSize : k_switchWidth);
-  KDRect onOffFrame(onOffX, heightCenter -switchHalfHeight, k_onOffSize, k_onOffSize);
-  ctx->blendRectWithMask(onOffFrame, KDColorWhite, (const uint8_t *)onOffMask, switchWorkingBuffer);
-}
-
-KDSize SwitchView::minimalSizeForOptimalDisplay() const {
-  return KDSize(k_switchWidth, k_switchHeight);
-}
+  KDRect onOffFrame(onOffX, heightCenter - halfHeight, k_onOffSize, k_onOffSize);
+  ctx->blendRectWithMask(
+    onOffFrame,
+    KDColorWhite,
+    reinterpret_cast<const uint8_t *>(onOffMask),
+    workingBuffer);
+}

escher/src/toggleable_dot_view.cpp

@@ -0,0 +1,41 @@
+#include <escher/toggleable_dot_view.h>
+#include <escher/palette.h>
+
+const uint8_t MediumDotMask[ToggleableDotView::k_dotSize][ToggleableDotView::k_dotSize] = {
+  {0xFF, 0xDB, 0x53, 0x0F, 0x0F, 0x53, 0xDB, 0xFF},
+  {0xD8, 0x10, 0x00, 0x00, 0x00, 0x00, 0x10, 0xD8},
+  {0x53, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x53},
+  {0x0F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0C},
+  {0x0F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0C},
+  {0x53, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x53},
+  {0xD7, 0x10, 0x00, 0x00, 0x00, 0x00, 0x10, 0xD7},
+  {0xFF, 0xD8, 0x53, 0x0C, 0x0C, 0x53, 0xD8, 0xFF},
+};
+
+const uint8_t MediumShallowDotMask[ToggleableDotView::k_dotSize][ToggleableDotView::k_dotSize] = {
+  {0xFF, 0xDB, 0x53, 0x0F, 0x0F, 0x53, 0xDB, 0xFF},
+  {0xD8, 0x17, 0x90, 0xEC, 0xEC, 0x90, 0x17, 0xD8},
+  {0x53, 0x90, 0xFF, 0xFF, 0xFF, 0xFF, 0x88, 0x53},
+  {0x0F, 0xEC, 0xFF, 0xFF, 0xFF, 0xFF, 0xEC, 0x0C},
+  {0x0F, 0xEC, 0xFF, 0xFF, 0xFF, 0xFF, 0xEC, 0x0C},
+  {0x53, 0x90, 0xFF, 0xFF, 0xFF, 0xFF, 0x88, 0x53},
+  {0xD7, 0x17, 0x90, 0xEF, 0xEF, 0x90, 0x17, 0xD7},
+  {0xFF, 0xD8, 0x53, 0x0C, 0x0C, 0x53, 0xD8, 0xFF},
+};
+
+void ToggleableDotView::drawRect(KDContext * ctx, KDRect rect) const {
+  /* Draw the view aligned on the right of the view and vertically centered
+   * The heightCenter is the coordinate of the vertical middle of the view. That
+   * way, (heightCenter-halfHeight) indicates the top of the StateView. */
+  KDCoordinate width = bounds().width();
+  KDCoordinate heightCenter =  bounds().height() / 2;
+  KDCoordinate halfHeight = k_dotSize / 2;
+  KDColor workingBuffer[k_dotSize * k_dotSize];
+
+  KDRect frame(width - k_dotSize, heightCenter - halfHeight, k_dotSize, k_dotSize);
+  ctx->blendRectWithMask(
+    frame,
+    m_state ? Palette::YellowDark : Palette::GrayDark,
+    m_state ? reinterpret_cast<const uint8_t *>(MediumDotMask) : reinterpret_cast<const uint8_t *>(MediumShallowDotMask),
+    workingBuffer);
+}

escher/src/toggleable_view.cpp

@@ -0,0 +1,6 @@
+#include <escher/toggleable_view.h>
+
+void ToggleableView::setState(bool state) {
+  m_state = state;
+  markRectAsDirty(bounds());
+}